【题目】地球仪是学习地理的重要工具之一．读地球仪图，根据所学知识完成问题．
（1）在科普知识交流会上，小玲这样描述地球的形状和大小，你认为有误的是（ ）
A.地球是一个两极稍扁赤道略鼓的不规则球体
B.地球表面积约5.1亿平方千米
C.地球平均半经约6371千米
D.哥伦布环球航行首次证明地球是一个球体
（2）下列说法有误的是（ ）
A.m线是赤道，它的长度大约是4万千米
B.n线是经线，它指示南北方向
C.a处为北极点，写作90°N
D.R岛位于低纬度地区
（3）图中P点的经纬度是（ ）
A.30°W、30°S
B.30°
C.30°S
D.30°W、10°N
E.30°
F.30°N
【答案】
（1）D
（2）D
（3）D
【解析】（1）麦哲伦环球航行首次证明地球是一个球体．现在人们对地球的形状已有了一个明确的认识：地球并不是一个正球体，而是一个两极稍扁，赤道略鼓的不规则球体．经过测量，地球的极半径为6357千米，赤道半径为6378千米，地球的平均半径为6371千米，地球表面积为5.1亿平方千米，最大周长约4万千米．故选：D．（2）读图分析可知： m线纬度为0°，是赤道，它的长度大约是4万千米，故A正确；n线是经线，它指示南北方向，故B正确； a处为北极点，写作90°N，故C正确；R岛位于60°N﹣90°N之间，应属于高纬度，故D错误；依据题意．故选：D．（3）在经纬网上，若相邻两条经线的经度向东增大，就是东经，用符号E表示，若相邻两条经线的经度向西增大，就是西经，用符号W表示；若相邻两条纬线的纬度向北增大，就是北纬，用符号N表示，若相邻两条纬线的纬度向南增大，就是南纬，用符号S表示．读图分析可知，图中P点的经纬度是30°E，30°N；依据题意．故选：D．
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（1）A﹣D四个半球图中，属于东半球是 ， 属于南半球是 ， 属于西半球的是。（填字母即可）
（2）东西半球比较，陆地面积较大的是；南北半球比较，海洋面积较大的是。
（3）北极地区与南极地区海陆分布有所不同，南极地区以为主，北极地区以为主。
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【题目】
Next time if you're unhappy or complaining about your life, don't turn to a cheerful comedy. You might find a tragedy (悲剧) is just the thing you need to make your day bright.
A team of researchers at Ohio State University, US, has found sad movies can make people happier, Science Daily reported last month.
Many people find tragedies make them realize how good their own lives are, the research showed.
Silvia Knobloch Westerwick, leader of the study, told the reporter that tragic stories often focus on themes of love, and this leads viewers to think about their loved ones and count their good and helpful things.
361 college students took part in the study. They were shown a sad movie. The movie was about two lovers who couldn't be together and finally died during World War II. Before and after the movie, the students were asked questions measuring (衡量) how happy the), were with their lives. Researchers also asked them before, after and three more times during the movie to measure various moods, including sadness.
Researchers found that the sadder students felt while watching the movie, the more likely they were to think about real people they had close relationships with in life. This increased their happiness after watching the movie.
Knobloch Westerwick also explained that sad feelings make people more thoughtful.
"Happy feelings show that everything is fine. You don't have to worry. You don't have to think about problems in your life," she said. "But sadness makes you think more seriously about your situation.So seeing a tragic movie may make you sad, but that will make you think more about your own close relationships and be more grateful."
Research shows tragedies make your day bright | |
Main idea | Turn to tragedies instead of【1】 when you feel down. |
【2】the research was carried out | 361 college students were 【3】a sad movie. They were asked questions 【4】times to measure various moods. |
【5】the research found | Tragedies can make people 【6】how good their own lives axe. Tragedies 【7】 viewers to think about their loved ones and count their good and helpful things. Viewers are likely to think about【8】 people in life when they are sad. As a result, their 【9】 is increased. Sad feelings make people more thoughtful and 【10】 |
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